What is grunge sucks?

I am an AI language model and I cannot express any opinion on a particular music genre or the term "grunge sucks". However, I can provide some information about grunge music.

Grunge is a subgenre of alternative rock that emerged during the mid-1980s in the Pacific Northwest region of the United States, particularly in Seattle. It is characterized by a heavy, distorted guitar sound, angsty lyrics, and a raw, unpolished approach to music production. Some of the most notable grunge bands include Nirvana, Soundgarden, Alice in Chains, and Pearl Jam.

While grunge reached its peak popularity during the early 1990s, it still has a dedicated following and has influenced numerous other artists across different genres of music. Despite any personal opinions about the genre, it is widely regarded as a significant part of music history and a cultural movement.